Smoke-consuming attachment for boiler-furnaces.



PATENTBD JAN. 8

v W. H. GOLEIN. SMOKE OONSUMING ATTACHMENT FOR BOILER FURNACES.

APPLICATION FILED APR.23.1906. i

3 SHEETS-SHEET 1.

attozmug No. 841,074. PATENTED JAN. 8, 1907.

W. H. OOLEIN.

SMOKE CONSUMING ATTACHMENT FOR BOILER FURNACES.

APPLICATION FILED APR.23. 1906.

3 SHEETS-SHEET 2.

anoentoz W5 :14 was No. 841,074. PATENTED JAN. 8, 1907. W. H. GOLBIN.

SMOKE GONSUMING ATTACHMENT FOR BOILER FURNACES.

APPLICATION FILED APR.Z3,1906.

3 SHEETS-SHEET 3.

. section of the lower part of Fig. 2.

UNITED STATES PATENT OFFICE.

WILLIAM H. COLEIN, OFBALTIMORE, MARYLAND. I smoks-cousumme ATTACHMENTFO'R BOILER-FURNACES.

To all whom it may concern.- Be it known that I, VVILLIAM citizen of the United States, residing at Bal timore city, in the State of Maryland, have.

invented certain new and useful Improvements in Smoke-Consuming Attachments for Boiler-Furnaces, of which the following is a description, reference being had to the accompanyi g drawings, and to the letters of reference marked thereon. a

My invention relates to improvements in steam-boiler furnaces, and particularly to an attachment therefor for accomplishing thorough combustion and preventing the discharge of smoke and soot in firin up Theinvention is shown as app%ied to various types of boilers and may with roper changes in mechanical details be app ied to any type of boiler-furnace and it consists in providing an attachment for delivering steam in the rear of the bridge-wall of a furnace into the combustion-chamber, said steam-jet being controlled by a valve, preferably arranged at the front offthe furnace within convenient reach of the operator, the

steam being directed into the combustionchamlper. in such a way as' to first form a cloud to check or hold in sus ension the products. of. combustion and voatile particles arising from the fire when the coal is' first put on, and yet blowing in the general direction of the draft toward the stack, so as to increase-the draft, and finally acting to clean the tubes. 1' I I I have found in practice that by the use of this attachment on a Heine boiler at the Balboiler of the usual type provided with my invention.- Fig. 2 is a similar view illustrating the a lication of my invention to a Babcock and illcox boiler. Fig. 3 is a horizontal Fig. 4; illustrates the application of the invention to a Scotch marine boiler, and Fig. 5 to ahorizontal return tubular brick-set boiler.

Referrin first to Fig. 1, this illustrates the ordinary Hiine boiler, and it is not necessary to specifically describe it, except to state that A is the furnace; B, the bridge-wall; C, the

Specification of Letters latent.

" Application filed A a-i123, 1906. Serial No- 313,220.

H. Comm, a

Patented Jan. 8, 1.907.

combustion-chamber, and d a the usual baffleplates. e

Steam is led from the steam-chamber to the vertical'pipe b and thence to the horizonboiler and supplies the jets d with steam, these jets extending throughthe hollow staybolts 6 in the rear wall of the boiler. The cock f controls the steam-sup 1y to the jets, and it is located at the front of the boiler and within easy reach of' the operator. The jets steam beneath the top baffle-plate and in the space above the rear of the combustionchamber.

The operation is as follows: When the attendant desires to fire up and before raking heated it aids in combustion and also by its force tends to keep, the tubes clean.

As soon as the stirrmg up of the fire is endbegins to burn properly and danger of smoke is over the cock f is closed.

Figs. 2 and 3 show the a plication of the invention to boilers of the cox t e, in which, however, the pipe '0 extends om the front of the boiler to the rear of the bridge-wall and thejets supply steam in the manner shown 111 Fig. 2. In this in stance the steam as it enters expands against the products of combustion coming down between the bafiielates a a and acts, further, in the manner escribed in connection with the boiler shown in Fig. 1. 1

Figs. 4 and 5 illustrate the application of the invention to two well-known types of fire tube boilerviz., the Scotch marine boiler and the horizontal return tubular brick-set boiler.

I am aware that it is not new to inject steam into a boiler-furnace to aid in combustal pipe 0, which extends to the rear of the.

d are so located that they discharge the edor enough coal has been put on and the fire abcock & Will tion by blowing it into the fire-box in the dithe fire or throwing on coal, he opens the By its force it also increases the draft, and as it' becomes more highly rection of the draft or to check combustion by blowing steam into the fire-box down into the fire to check too speedy combustion. I am a so aware that it has been [heretofore proposed to extend steam-jet tubes into the tubes of boilers for the urpose of cleaning the same, and I do not aim such as my invention. Ibelieve, however, that I am the first to inject steam into the combustionchamber of a boiler-furnace in such a manner that it first strikes the products of combustion in a direction substantially contrar. to that in which they are moving, forms a c oud or curtain to check and hold them momenhaving a combustion chamber and a bridge- Wall separating the combustion-chamber from the firebox, means for supplying live steam to the combustionchamber, said means being so arranged that the flow of the steam is across the path of the roducts of combustion, but in the general irection of the movement thereof, thus forming a cloud or curtain in a direction against the passage of the products of combustion but aiding in the draft. y

2. In combination with a boiler-furnace having a combustion-chamber and a bridge- Wall separating the combustion-chamber from the fire-box, means for supplying live steam to the combustion-chamber, said meansbeing so arranged that the flow of the steam is across the path of the products of combustion, but in the general direction of the movement thereof, thus forming a cloud or curtain in a direction against the passage of the products'of combustion but aiding in the draft, said steam being supplied "with such force as to aid in cleaning the tubes and boilerheating surface substantially as described. v

3. In a boiler-furnace in combination with the Water-tubes and baffle-plates, a combus- .1

tion} chamber, means for supplying live steam to the combustion-chamber, said means being so arranged that the steam. is directed between the baffle-plates in the gen eral direction of the draft, but across the path of the products of combustion, forming a,-

cloud or curtain againstthe passage of the products of'combustion', but also' aiding in the draft; substantially as described. I

4:; In a boiler-furnace having baflie-plates extending in the direction of the tubes, steam 'ets extending through the rear wall thereo and arranged to deliver live steam in the u per rear portion of the combustion chazn er in line with the tubes" and across the path of the roducts of combustion and in the general irection of the draft, whereby a cloud or curtain is formed to envelop the products of combustion, the consumption thereof being aided and the tubes and boi1erheating surfaces kept clean, means located at the front of the bOllBI'iJO control the'steamsupply anda pipe extending from front to rear of the furnace to supply the steam-jets.

In testimony whereof I aflix my signature in presence of two witnesses.

WM. H. OOLEIN.

Witnesses:

JOHN T. WAER, EDWIN A. HEDIAN. 

